Results 41 to 50 of about 9,369 (182)

Fundamental Units of Measurement and Extra Dimensions

Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022
The space available to our perception is three-dimensional with full evidence. The development of physics led to the hypothesis of extra dimensions. It is believed that an important role in the unification of physics should play by the Planck units of mass, length and time, built on the universal constants c (the speed of light in a vacuum), G (the ...
Askar Abdukadyrov, Gaetano Luciano
wiley   +1 more source

A Note on Toroidal Compactifications of the Type I Superstring and Other Superstring Vacuum Configurations with 16 Supercharges [PDF]

, 1997
We show that various disconnected components of the moduli space of superstring vacua with 16 supercharges admit a rationale in terms of BPS un-orientifolds, i.e.
Alessandrini, Alessandrini, Alvarez-Gaumé, Angelantoni, Angelantonj, Antoniadis, Antoniadis, Belavin, Bianchi, Bianchi, Bianchi, Bianchi, Bianchi, Bianchi, Bianchi, Bianchi, Cai, Cardy, Dabholkar, Dixon, Dixon, Dixon, Dixon, Dixon, Duff, Ferrara, Fioravanti, Friedan, Gepner, Green, Green, Green, Gross, Hořova, Hořova, Hull, Hull, Hull, Kawai, Lerche, Marcus, Massimo Bianchi, Narain, Narain, Narain, Polchinski, Pradisi, Pradisi, Pradisi, Pradisi, Sagnotti, Salam, Seiberg, Seiberg, Sieberg, Sieberg, Tseytlin, Tseytlin, Vafa, Verlinde, Witten   +60 more
core   +2 more sources

Supersymmetric Dyons, Superstrings, and Rotating Wormholes

Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022
We construct supersymmetric dyon solutions based on the ‘t Hooft/Polyakov monopole. We show that these solutions satisfy κ‐symmetry constraints and can therefore be generalized to supersymmetric solutions of type I SO(32) string theory. After applying a T‐duality transformation to these solutions, we obtain two D3‐branes connected by a wormhole ...
E. Olszewski, Matteo Beccaria
wiley   +1 more source

Introduction to Superstring Cosmology [PDF]

, 2010
This is a summary of lectures in superstring cosmology given by the author at the CORFU 2009 School and Workshops "Theory - Cosmology - Phenomenology", Corfu Institute, Greece, Sept 6-13, 2009.
Angelantonj, Antoniadis, Bassett, Battefeld, Borunda, Bourliot, Bourliot, Bowick, Brandenberger, Catelin-Jullien, Catelin-Jullien, Catelin-Jullien, Cremmer, Ellis, Ellis, Ellis, Ferrara, Florakis, Kaloper, Kaloper, Kounnas, Kounnas, Kounnas, Kounnas, Kounnas, Kripfganz, Matsuo, Tseytlin   +27 more
core   +1 more source

Double Copy from Homotopy Algebras

Fortschritte der Physik, Volume 69, Issue 8-9, September 2021., 2021
It will be shown that the BRST Lagrangian double copy construction of N = 0 supergravity as the ‘square’ of Yang–Mills theory finds a natural interpretation in terms of homotopy algebras. The authors significantly expand on their previous work arguing the validity of the double copy at the loop level, and they give a detailed derivation of the double ...
Leron Borsten, Hyungrok Kim, Branislav Jurčo, Tommaso Macrelli, Christian Saemann, Martin Wolf   +5 more
wiley   +1 more source

String Phenomenology: Past, Present and Future Perspectives [PDF]

, 2014
The observation of a scalar resonance at the LHC, compatible with perturbative electroweak symmetry breaking, reinforces the Standard Model parameterisation of all subatomic data.
Faraggi, Alon E.
core   +3 more sources

String (Gravi)photons, “Dark Brane Photons”, Holography and the Hypercharge Portal

Fortschritte der Physik, Volume 69, Issue 6, June 2021., 2021
Abstract The mixing of graviphotons and dark brane photons to the Standard Model hypercharge is analyzed in full generality, in weakly‐coupled string theory. Both the direct mixing as well as effective terms that provide mixing after inclusion of SM corrections are estimated to lowest order.
P. Anastasopoulos, M. Bianchi, D. Consoli, E. Kiritsis   +3 more
wiley   +1 more source

Systematics of type IIA moduli stabilisation

Journal of High Energy Physics, 2020
We analyse the flux-induced scalar potential for type IIA orientifolds in the presence of p-form, geometric and non-geometric fluxes. Just like in the Calabi-Yau case, the potential presents a bilinear structure, with a factorised dependence on axions ...
Fernando Marchesano, David Prieto, Joan Quirant, Pramod Shukla   +3 more
doaj   +1 more source

BPS Saturated Dyonic Black Holes of $N=8$ Supergravity Vacua [PDF]

, 1995
We summarize the results for four-dimensional Bogomol'nyi-Prasad- Sommerfield (BPS) saturated dyonic black hole solutions arising in the Kaluza-Klein sector and the three-form field sector of the eleven-dimensional supergravity on a seven-torus.
Banks, Bogomol'nyi, Cremmer, Cremmer, Cvetič, Cvetič, Cvetič, Cvetič, Cvetič, Cvetič, Dirac, Donam Youm, Giveon, Harvey, Hull, Hull, Hull, Huq, Khuri, Khuri, Khuri, Mirjam Cvetič, Narain, Narain, Prasad, Schwarz, Schwinger, Schwinger, Sen, Sen, Shapere, Strominger, Townsend, Tseytlin, Witten, Zwanzinger, Zwanzinger   +36 more
core   +2 more sources

Swampland variations on a theme by KKLT

Journal of High Energy Physics, 2019
The KKLT scenario in a warped throat, if consistent, provides a concrete counterexample to both the AdS scale separation and the dS swampland conjectures.
Ralph Blumenhagen, Daniel Kläwer, Lorenz Schlechter   +2 more
doaj   +1 more source